Cohen, 1928-  <br/><br/>
Research methods in education  
/ Louis Cohen and Lawrence Manion. 
 - 4th ed.. 
 - London  Routledge  1994. 
 - xxii, 414p.  ill.  24cm 
<br/><br/> Includes index p.403 - 414 
<br/><br/><label>ISBN: </label>0415102359  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research<br/>Education--Research--Great Britain
<br/><br/><label>Dewey Class. No.: </label>370.78 COH 1994